rect.mx raw

   1  // Copyright 2010 The Go Authors. All rights reserved.
   2  // Use of this source code is governed by a BSD-style
   3  // license that can be found in the LICENSE file.
   4  
   5  package cmplx
   6  
   7  import "math"
   8  
   9  // Rect returns the complex number x with polar coordinates r, θ.
  10  func Rect(r, θ float64) complex128 {
  11  	s, c := math.Sincos(θ)
  12  	return complex(r*c, r*s)
  13  }
  14